Design with TSOP38238 IR Receiver in Cirkit DesignerThe TSOP38238 is an infrared (IR) receiver module designed for remote control applications. It operates at a carrier frequency of 38 kHz, making it compatible with most standard IR remote controls. The module is equipped with a built-in preamplifier and demodulator, which filters out ambient light interference and provides a clean digital output signal. This makes it ideal for use in consumer electronics, home automation systems, and robotics.
This circuit is an IR remote control system using an ESP32 microcontroller. It includes an IR receiver and transmitter for capturing and sending IR signals, an OLED display for user interface, and multiple buttons for user input. The system can store and manage multiple remote control codes.
Open Project in Cirkit Designer
This circuit consists of an ESP-01 microcontroller connected to an IR receiver. The ESP-01 is configured to receive data from the IR receiver through its GPIO0 pin, and both components share a common ground and power connection. The provided code for the ESP-01 microcontroller is a template with empty setup and loop functions, indicating that the specific functionality for the IR data processing has not been implemented yet.
Open Project in Cirkit Designer
This circuit is a sensor and motor control system powered by a 3.7V LiPo battery, regulated to power various components including a Raspberry Pi Pico microcontroller. The system includes light sensors, an IR receiver, and an RF receiver to gather input, and uses a motor driver to control two DC motors based on the sensor inputs.
Open Project in Cirkit Designer
This circuit uses an Arduino UNO to receive and decode infrared signals from a VS1838B IR Receiver. The Arduino is programmed to read the IR signals on digital pin D2 and print the decoded IR codes to the serial monitor.
Open Project in Cirkit DesignerBelow are the key technical details of the TSOP38238 IR receiver:
| Parameter | Value |
|---|---|
| Carrier Frequency | 38 kHz |
| Supply Voltage (VCC) | 2.5 V to 5.5 V |
| Supply Current | 0.35 mA (typical) |
| Output Voltage (High) | VCC - 0.2 V (typical) |
| Output Voltage (Low) | < 0.2 V |
| Reception Distance | Up to 45 meters (depending on IR emitter) |
| Viewing Angle | ±45° |
| Operating Temperature | -25°C to +85°C |
| Package Type | Epoxy package with 3 pins |
The TSOP38238 has three pins, as described in the table below:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | OUT | Digital output signal (active low) |
| 2 | GND | Ground (0 V reference) |
| 3 | VCC | Supply voltage (2.5 V to 5.5 V) |
Below is an example of how to connect the TSOP38238 to an Arduino UNO and read IR signals:
#include <IRremote.h> // Include the IRremote library
const int RECV_PIN = 2; // TSOP38238 OUT pin connected to Arduino pin 2
IRrecv irrecv(RECV_PIN); // Create an IR receiver object
decode_results results; // Variable to store decoded IR data
void setup() {
Serial.begin(9600); // Initialize serial communication
irrecv.enableIRIn(); // Start the IR receiver
Serial.println("IR Receiver is ready");
}
void loop() {
if (irrecv.decode(&results)) { // Check if an IR signal is received
Serial.print("IR Code: ");
Serial.println(results.value, HEX); // Print the received code in HEX format
irrecv.resume(); // Prepare to receive the next signal
}
}
IRremote library in the Arduino IDE before uploading the code.No Signal Detected:
Interference from Ambient Light:
Unstable Output:
Short Reception Range:
Q1: Can the TSOP38238 work with any IR remote control?
A1: The TSOP38238 is compatible with most IR remote controls that operate at a carrier frequency of 38 kHz.
Q2: What is the maximum range of the TSOP38238?
A2: The maximum range is up to 45 meters, depending on the power and alignment of the IR emitter.
Q3: Can I use the TSOP38238 with a 3.3 V microcontroller?
A3: Yes, the TSOP38238 operates with supply voltages as low as 2.5 V, making it compatible with 3.3 V systems.
Q4: How do I decode the received IR signals?
A4: Use an IR library (e.g., IRremote for Arduino) to decode the received signals into recognizable codes.
By following this documentation, you can effectively integrate the TSOP38238 IR receiver into your projects and troubleshoot any issues that arise.